CN106846937A - A kind of radiationless Antenatal training apparatus based on LED visible light communication technology - Google Patents
A kind of radiationless Antenatal training apparatus based on LED visible light communication technology Download PDFInfo
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- CN106846937A CN106846937A CN201710151806.4A CN201710151806A CN106846937A CN 106846937 A CN106846937 A CN 106846937A CN 201710151806 A CN201710151806 A CN 201710151806A CN 106846937 A CN106846937 A CN 106846937A
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- visible light
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- master control
- led visible
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/04—Electrically-operated educational appliances with audible presentation of the material to be studied
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a kind of radiationless Antenatal training apparatus based on LED visible light communication technology, the function of row data communication is entered in realization by LED visible light communication technology.Apparatus of the present invention include system sending module, system receiving module, display module and control module.By design device of the invention, when being used, different prenatal culture modes are determined by selecting different mode, be placed on receiving terminal on the belly of pregnant woman by hand-held device transmitting terminal, so that it may carries out prenatal culture behavior.The present invention not only carries out the propagation of data with more green communication mode, will not produce electromagnetic radiation, it is ensured that pregnant woman's being perfectly safe in use.When the device carries out prenatal culture, the reaction of foetus can be intuitively observed very much, and device volume is compact, easy to carry.
Description
Technical field
The present invention devises a kind of radiationless Antenatal training apparatus based on LED visible light communication technology, more particularly to visible
Optical communication technique, belongs to communication technical field.
Background technology
Modern medicine confirms that fetus truly has the potential strange energy accepted the education, and the conditioned reflex of fetus in pregnant 26 weeks or so is substantially
Formed.Before and after pregnant 26 weeks, science, early stage human intervention is moderately given, each sense organ of fetus can be made numerous
Benign signal stimulate under, functional development obtains more perfect, at the same can also play excavate fetus potenfialities positive role, be
Lower good basis is established in postnatal early education.However, incorrect prenatal culture mode can be adversely affected to fetus, therefore
It is very necessary using scientific and effective Antenatal training apparatus in the pregnancy period.
The content of the invention
The present invention designs one kind and is based on to solve the negative effect that traditional Antenatal training apparatus bring in use
The radiationless Antenatal training apparatus of LED visible light communication technology.Corresponding prenatal culture pattern, hand-held dress are selected by the operating key of hand-held device
The communication for carrying out data by LED visible light with system receiving module is put, system receiving module has corresponding work after receiving information
Operation mode.It is that electric flux is changed into light energy to be changed into electric flux, light energy (light again due to carrying out communication in LED visible light
Radiation signal) electromagnetic radiation is not belonging to, so injury of the electromagnetic-radiation-free to human body when prenatal culture behavior is carried out, while can carry out
Illumination prenatal culture.
Device of the present invention contains system sending module, system receiving module, display module and control module four
Individual part.Display module, control module are connected to form hand-held device with system sending module respectively, system receiving module composition
Reception device is placed on her abdominal when in use.
System sending module comprising light emitting diode, send master control PCB, wherein send master control PCB by
Bias device is collectively constituted with modulation circuit.The system sending module is special using the luminescence response of light emitting diode high speed point off
Property, the visible light signal of modulation is directly transmitted in atmosphere.System sending module includes light emission system, and it is to utilize partly to lead
The luminescence response characteristic of body device high speed point off, the visible light signal of modulation is directly transmitted in atmosphere, makes visible light communication
It is combined with illumination and constructs illumination and the dual-purpose base station lamp that communicates, for communication provides a kind of brand-new bandwidth access way.Hair
Optical diode is the one way conducting device that electric current drives, and in order to ensure the normal work of light emitting diode, its drive circuit is general
Using constant-current source and using highdensity integrated circuit.
Display module is display screen, and for showing current operation mode and working condition, display module sends mould with system
Block is connected.
Control module includes safety power supply, operating key, memory.Button realizes the selection control to apparatus function；Storage
Device is used to read the data of external storage；Safety power supply is used to power, and the part cooperative cooperating hand-held device of the above three enters
Row control.The modulation circuit of display module, control module respectively with system sending module is joined directly together row data communication of going forward side by side, and leads to
Cross selection different mode and show different content on a display screen, carry out different prenatal culture behaviors.
System receiving module includes reception master control PCB, loudspeaker, wherein receiving master control PCB by photoelectricity
Detector, demodulator, bandpass filter are collectively constituted.The photodetector used in optical receiver system is one kind light spoke
The device that signal (light energy) is transformed into electric signal (electric flux) is penetrated, its principle is the interaction with material based on light radiation
Produced photoelectric effect；Loudspeaker arrangement can carry out outer putting after being processed through the filtering signal of ovennodulation.
Device of the present invention has positive effect：(1) present invention can be prevented effectively from using visible light communication technology
The generation of electromagnetic radiation during use；(2) when illumination prenatal culture is carried out, the more scientific use yellow light sources of the present apparatus, rationally
Control time, effectively facilitate the foundation and development of fetus visual performance.
Brief description of the drawings
Fig. 1 is the structural representation of the radiationless Antenatal training apparatus based on LED visible light communication technology in the present invention.
Fig. 2 is Antenatal training apparatus block diagram of the invention.
The mark of Fig. 1 is as follows in above-mentioned accompanying drawing：
1st, light emitting diode；2nd, end housing is sent；3rd, master control PCB is sent；4th, operating key；5th, display screen；6th, deposit
Reservoir；7th, safety power supply；8th, end housing is received；9th, loudspeaker；10th, master control PCB is received.
Specific embodiment
Specific embodiment of the invention is illustrated below in conjunction with the accompanying drawings.
The structural representation of the radiationless Antenatal training apparatus based on LED visible light communication technology in the present invention as shown in Figure 1,
Prenatal culture, including the 10 kinds of parts for illustrating are carried out the pregnancy middle and later periods to fetus for pregnant woman.1~7 composition transmitting terminal, 8~10
Composition receiving terminal.Pattern, different button triggering system module different operatings are determined by the selection operating key of transmitting terminal first
State.
Under illumination prenatal culture pattern, the light emitting diode in light emission system is lighted, and sends the gold-tinted that wavelength is 570nm, this
When no data communication, pregnant woman only need to by device be close to stomach wall irradiation foetus cephalad direction, each prenatal culture light application time
And frequency has set, five minutes every time；The emitting portion that communicated under embryo music education pattern, in light emission system is started working,
The voice data in internal memory is read, the sine wave signal to being produced from function generator is amplified, then, by the letter after amplification
Number it is loaded on the DC bias current of the LED light emitting diodes driven by constant-current source, that is, original binary bits
After stream is by pretreatment and coded modulation, light emitting diode is driven, intensity modulated is carried out to light emitting diode, electric signal is turned
It is changed to optical signal.Wherein, because PIN silicon photoelectricity planar diodes have, electric capacity is small, the transition time is short, sensitivity is high, temperature not
The features such as sensitive, applicable situation is restricted less, and inexpensively, it is small volume, weight parent, good reliability, easy to use, thus
This kind of diode is selected in this device.In the Data processing that transmitting terminal is carried out, pretreatment refers to preequalization, for compensator
The distortion that part, channel bring to signal, by improving the responsive bandwidth of light emitting diode using pre-equalization techniques, improves transmission speed
Rate.What is sent due to LED light source is incoherent light, it is impossible to provide stabilized carrier, so VLC links are using intensity modulation and straight
The method for connecing detection, communication link mainly selects direct-injection type data cube computation.Then the optical signal of transmission data is carry in freedom
It is transmitted in space, by the lens of receiver front end, is focused on photodetector, because the ripple of PIN photoelectric detector
Response range long is about 0.4~1.1 μm, so being well suited for doing the signal detection of this device, then photodetector will be received
To optical signal be converted to electric signal, need received electric module, exactly for this electric signal is demodulated and data signal at
Reason, so as to recover initial data.Include low-noise amplifier, automatic gain control circuit, clock recovery circuitry in demodulation chip
And your signal processing module digital etc., the signal that PIN receives first passes around the amplification of low noise automatic gain control amplifier, then
Feeding demodulation module demodulation.The signal of recovery is carried out into the signal transacting of rear end with balanced, Ran Houyou after ofdm signal demodulation
FPGA carries out MAC parsings, finally recovers original data.Can be filtered when to signal transacting simultaneously, leach 500~
Frequency range beyond 2000HZ, this is the band limits to fetal well-being that scientific research draws, the danger that will not can be caused to fetus
Evil.When equipment not enough power supply, charging equipment can be used to charge it.Such as carry out being not desired to be continuing with during prenatal culture operation,
Can be by selection key pass hull closure.
Antenatal training apparatus block diagram in the present invention as shown in Figure 2, contains system sending module, system receiving module, display
Module, four parts of control module.Mode of operation, system sending module is selected to show after receiving command information by control module
Show display in module, simultaneity factor sending module sends data by light emitting diode, and final system sending module receives data,
Data communication is completed.
Above is one embodiment of the present of invention has been described in detail, rather than limitation of the present invention, relevant technology
The technical staff in field without departing from the spirit and scope of the present invention, can also make it is various conversion and change so as to
Corresponding equivalent technical scheme can be obtained, therefore all equivalent technical schemes should be included into patent of the invention and protect
Shield scope.
Claims (4)
1. a kind of radiationless Antenatal training apparatus based on LED visible light communication technology, realize and enter line number by LED visible light communication
According to the function of communication, it is characterised in that comprising system sending module, system receiving module, display module, control module, the system
System sending module, display module, control module composition hand-held device, system receiving module composition reception device are placed when in use
In her abdominal position.
2. the system as claimed in claim 1 sending module, it is characterised in that contain light emitting diode (1), send master control PCB
Circuit board (3), wherein send master control PCB (3) being collectively constituted with modulation circuit by bias device, the system sending module
Using the luminescence response characteristic of light emitting diode high speed point off, the visible light signal after modulation is directly transmitted in atmosphere.
3. display module as claimed in claim 1, control module, it is characterised in that display module is display screen (5), controls mould
Block is made up of safety power supply (7), operating key (4), memory (6), display module, control module respectively with described in claim 2
Transmission master control PCB (3) be joined directly together row data communication of going forward side by side, shown on a display screen not by selecting different mode
Same content, carries out different prenatal culture behaviors.
4. the system as claimed in claim 1 receiver module, it is characterised in that contain reception master control PCB (10), raise
Sound device (9), wherein described reception master control PCB (10) is by photodetector, demodulator, common group of bandpass filter
Into optical radiation signal is transformed into electric signal by photodetector, then this electric signal is demodulated by demodulator and numeral letter
Number treatment, so as to data recovery is obtained into required frequency range by band-pass filter again into after primary signal, by raising one's voice
Device sends sound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710151806.4A CN106846937A (en) | 2017-03-10 | 2017-03-10 | A kind of radiationless Antenatal training apparatus based on LED visible light communication technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710151806.4A CN106846937A (en) | 2017-03-10 | 2017-03-10 | A kind of radiationless Antenatal training apparatus based on LED visible light communication technology |
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| CN106846937A true CN106846937A (en) | 2017-06-13 |
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| CN201710151806.4A Pending CN106846937A (en) | 2017-03-10 | 2017-03-10 | A kind of radiationless Antenatal training apparatus based on LED visible light communication technology |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2710074Y (en) * | 2004-07-13 | 2005-07-13 | 黄茂雄 | Auditory device for listening fetal heart sound |
| CN101038705A (en) * | 2006-03-18 | 2007-09-19 | 北京华旗资讯数码科技有限公司 | Fetal education machine |
| CN202309713U (en) * | 2011-09-23 | 2012-07-04 | 天津工业大学 | Voice message notification system based on LED (Light Emitting Diode) visible light |
| CN203859866U (en) * | 2013-12-31 | 2014-10-01 | 西安理工大学 | Device for transmitting sound via laser |
| CN104306018A (en) * | 2014-10-11 | 2015-01-28 | 重庆理工大学 | Wearable fetus education bellyband system with fetus sound monitoring, fetus movement detection and fetus movement trajectory induction functions |
| CN205378860U (en) * | 2016-03-14 | 2016-07-13 | 任光辉 | Maternity dress with prenatal guidance function |
| CN106340212A (en) * | 2016-11-09 | 2017-01-18 | 徐长超 | Antenatal training and early education method with music and illumination |
-
2017
- 2017-03-10 CN CN201710151806.4A patent/CN106846937A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2710074Y (en) * | 2004-07-13 | 2005-07-13 | 黄茂雄 | Auditory device for listening fetal heart sound |
| CN101038705A (en) * | 2006-03-18 | 2007-09-19 | 北京华旗资讯数码科技有限公司 | Fetal education machine |
| CN202309713U (en) * | 2011-09-23 | 2012-07-04 | 天津工业大学 | Voice message notification system based on LED (Light Emitting Diode) visible light |
| CN203859866U (en) * | 2013-12-31 | 2014-10-01 | 西安理工大学 | Device for transmitting sound via laser |
| CN104306018A (en) * | 2014-10-11 | 2015-01-28 | 重庆理工大学 | Wearable fetus education bellyband system with fetus sound monitoring, fetus movement detection and fetus movement trajectory induction functions |
| CN205378860U (en) * | 2016-03-14 | 2016-07-13 | 任光辉 | Maternity dress with prenatal guidance function |
| CN106340212A (en) * | 2016-11-09 | 2017-01-18 | 徐长超 | Antenatal training and early education method with music and illumination |
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